What chapter talks about Residential school for cultural language?

Chapter 12, page 48....

At St. Germ's the kids called me "Zhaunagush" because I could speak and read English. Most of them had been pulled from the deep North and knew only Ojibway. Speaking a word in that language could get you beaten or banished to the box in the basement the older ones had come to call the Iron Sister. There was no tolerance for Indian talk.